Sinsun Flat Amplified HDTV Antenna - 50 Miles Range with Built-in Amplifier Signal Booster and 15 Feet Coax Cable for Indoor Using RecSuper Thin design and lightweight. Allows you to hide it behind the TV, lay flat on table, stick it high on window to receive free digital broadcast High Definition TV signals,never pay your cable or satellite for television Again! Our antenna can pull in all of your local news, weather, sitcoms, kids and sports programs absolutely FREE. Just connect it to your television and let the antenna do all the work. 15 feet long cable makes it easier for you to place it in your house to get the best reception. Re-Scan for Channels. In the TV's setup menu, set the mode to Antenna or Air.Refer to the TV manual for detailed instructions. Please check the swatch images to know How to choose your antenna. NOTE: If the channel or the antenna not working as expected, please do as the follows. a. Check to make sure you have correctly connected the antenna to your HDTV or third-party HD receiver. b. Re-Scan for Channels. In the TV's setup menu, set the mode to Antenna or Air.Refer to the TV manual for detailed instructions. c. Reposition the antenna in a different location,facing the direction of the broadcast tower is usually the best. Channel reception depends on what's being broadcast in your area, how far away you are from towers, and your surroundings. Built-in signal amplifier powered by TV's USB port or any other power supply (DC 5V),boost the single reception from broadcast tower which is 40-50 miles away from your home.It delivers full 1080p HD to any digital-ready TV. Specially compatible with HDTV of various digital terrestrial(DVB-T,ISDB-T,DMB T/H,ATSC) and DAB/FM radios. NOTE:Before you buy,please find out what channels are available in your area (it would be better to find out a broadcast tower which is 40-50M away from your home).